Molding-machine.



No. 735,049. PATENTED AUG. 4, 1903.

J. P. APPLBBY.

MOLDING MACHINE.

^ APPLICATION lFILED 00T. 24. 1902.

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PATBNTBD AUG. 4, 1903.

J. P. AF'PLBBY.

MOLDING MACHINE.

APPLIGATIQN FILED 00124. 1902.

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PATENTED AUG. 4, 1903.

' J. P. APPLBBY.

MOLDING MACHINE.

APPLIOATION FILED 0013,24. 1902.

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atented August 4, 1903'.

PATENT OEEICE.

JAMES P. APPLEBY, OF HOPKINS, MINNESOTA.

Momma-MACHINE.

SPECIFICATION forming part of Letters Patent No. 735,049, dated. August4, 1903.

Application filed October 24,1902.

T MZ wtowt t Wray concern.-

Be it known that I, JAMES P. APPLEBY, a citizen of the United States,residing at Hopkins, in the county of Hennepin and State of Minnesota,have invented certain 'new and useful Improvements in Molding-Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My present invention relates to moldingmachines of the general characterdisclosed and claimed in my prior patent of the United States, No.707,535, issued of date August 26, 1902, and has for its object toimprove the same in the several particulars hereinafter noted.

The invention consists of the novel devices and combinations of deviceshereinafter described, and defined in the claims.

The invention is illustrated in the accom'- panying drawings, whereinlike characters indicate like parts throughout the several views.

Figure 1 is a plan view of the complete machine. Fig. 2 is a sideelevation of the same. Fig. 3 is a view, principally in verticalsection, on the line rc3 rc3 of Fig. 1, but with some parts left in fullside elevation. Fig. 4 is a horizontal section on the line x4 m4 of Fig.3; and Fig. 5 is a detail in 'horizontal section on the line @c5065 ofFig. 3, some parts being broken away.

The numeral 1 indicates a suitable bedplate, shown as supported by legs1a and provided With bearings 2. At diametrically opposite points and atninety degrees distant from the bearings 2 the bed-plate l is formedwith rectangular yokes or extensions 1b, just inward of which arerectangular perforations or clearance-passages l.

The stripper-plate or moldboard is made up of two sections 3 and 3, theouter of which sections 3 is conveniently supported from the bed-plate 1by four vertical posts or rods 4, while the inner section 3 is alsoconveniently supported from said bed-plate in a similar manner by fourposts or rods 4. The said inner section 3 is in the form of a d isk andis located concentric to a circular opening in said section 3, therebyleaving between them Serial No.128,605. (No moder! The numeral 7indicates a horizontally-ezbtended and verticallymovable pattern-plate,u pon which is rigidly secured in any suitable Way an annularrim-forming pattern 8 and a hub-forming pattern 9, the former of whichis adapted to work upward through the annular space 3b, above noted, andthe latter of which works through a suitable perforation 9, formed atthe center of the stripper-plate section 3a. The pattern-plate 7 isguided for true vertical movements bya pair of vertical guide-columns10,which are preferablysquare in cross-section and which at their upperends are provided with trunnions 11, which fit in' seats formed inanchoring-brackets 12, rigidly but adjustably secured to thestripperplate section 3 by machine-screws 13. The connections betweenthe upper ends of said guide-columns 10 and the stripper-plate secA tion3 are preferably the same as those disclosed in my-prior patent aboveidentified. For connecting the depending or lower ends of the saidguide-columns 10 to the bed-plate l I provide devices which I believe tobe entirely novel. The lower ends of said guidecolumns 10 project withclearance around them down through the passages 1c in said plate 1, andeach is connected by a so-called pulling-screw 14 to the outer portionof the corresponding yoke lb of said plate 1. These screws 14 turnloosely, or, in other words, are swiveled in the said yokes lb and workwith screw-threaded engagement in seats formed in the said posts 10, asbestshown in Fig. 3. Cooperating with each pullingscrew 14 is a pair ofpushing-screws 15, which work with screw threaded engagement through theyoke 1b and impinge against the opposite intersecting outer faces of thesaid posts 10. As is evident, the said pullingscrews 14 keep the lowerends of the guidecolumns 10 drawn outward tightly against the so-calledpush-screws 15, (which latter act as stops,) and thus rigidly butadjustably hold the lower ends of the columns lO, but-leaveA IOO theirintersecting inner faces unobstructed and free. By screwing thecoperating pushing-screws 15 the one inward and the other outward thedepending ends of the columns 10 may be adjusted laterally ortangentially to a circle struck from the axis of the plates 1 and 7. Onthe other hand, by adjusting both screws 15 equally and in the samedirection-that is, both inward or both outwardand by correspondinglyadjusting the coperating screw 14 the depending ends of saidguide-columns 10 may be adjusted radially or toward and from the axisabove noted. The upper ends of the said guide-columns 10 may be adjustedas in my said prior patent. To the opposite sides of the pattern-plate 7are rigidly secured long depending guides or keepers 16, formed withright-angle grooves, which closely engage the intersecting inner facesonly of the guide-columns 10. These guides or keepers 16 are adapted towork on the guide-columns 10 down to or even below the lower extremitiesof said columns, and it will be noted that the clearance-passages 1cpermit such movements. It will also be noted that the screws 14 and 15do not form obstructions or in any wise limit the downward movements ofthe said guides or keepers 16. In fact, the said keepers or guides mightwork downward below the said screws and through the bed-plate 1 muchfarther than illustrated in the accompanging drawings.

Projecting from the opposite sides of the pattern-plate 7, ninetydegrees distant from the guides 16, are trunnions 17. A rock-shaft 18 isloosely journaled in the bearings 2 (heretofore noted) and is providedat one end with a lever 19, by means of which it may be rocked by handor otherwise. Just outward of the bearings 2 the shaft is provided witha pair of cranks 20, which are connected to the tru unions 17 on thepattern-plate 7 by links 21. The annular rim 8 and hub 9, respectively,are adapted to form the rim and hub of the pulley which is to be cast.The spokes of the pulley may be conveniently formed by curvedpattern-strips 22, secured on the face of the stripper-plate section 3by dowel-pins or in any other suitable way. The device described is ofcourse adapted to form but one-half of a pulley. As is evident, thepattern-sections 8 and 9 are moved upward into operative positions, asillustrated in Fig. 2, or downward into inoperative positions (indicatedin Fig. 3) by oscillating the rock-shaft 18. When the saidpattern-sections are drawn downward through the stripper-plate, they areof course drawn from the sand with a true or straightline movement. Inmany classes of work it is also very desirable that the ask be raisedfrom those portions of the pattern which are carried by thestripper-plate with a true vertical or straight-line movement. Means foraccomplishing this result have hitherto been provided; but as one of thefeatures of my result. In the most approved manner of applying theseflask-lifting devices the lower portions of the posts 4 are slotted, asshown at 23, and short levers 24 are passed therethrough and pivoted attheir intermediate portions to the bifurcated portions of said posts.

The numeral 25 indicates relatively long and the numeral 26 relativelyshort plu ngers,

screw-threaded at their lower ends, providedv with lock-nuts 27 andscrewed into heads 28. The heads 28 are preferably bifurcated and arepivoted one to each end of the coperating lever 24. The long plungers 25work through suitable seats in the stripper-plate sections 3 and engagethe under rim portion of the flask 5. The short plungers 26 work upwardthrough seats in the lateral projections 29 of the posts 4, and theirupper ends stand in position to be engaged by the pattern-plate 7 as itclosely approaches the limit of its downward movement. By reference toFig. 3 it will be seen that when the patternplate 7 is lowered to itsextreme position the flask 5 is raised materially7 above thestripper-plate and those portions of the pattern supported by thestripper-plate. The longitudinally-adjustable rods for lifting the flaskI believe to be broadly new. By adjusting either the long or the shortplungers or rods the distance to which the flask will be raised may bevaried. Neverthelessit is important that both of the said plungers orrods be adjustable, inasmuch as by the adjustments of both thereof boththe distance which the flask will be raised and the time at which itwill be raised may be varied,and the levers 24 may be always kept setfor movements through the most efiicient zones of action and may all beset in the same positions with respect to a horizontal plane.

The novel devices for adjusting the guidecolumns 10 may of course beapplied either to their upper or their lower ends, or to both ends forthat matter, accordingly as circumstances may require. The long plungers25, being much heavier thany the short plungers 26, will return theparts of the flask-lifting devices to the normal positions (indicated inFig. 2) whenever the pattern-plate 7 is raised.

It will, of course, be understood that the several features of myinvention above described are capable of modification as to details ofconstruction and are also capable of association with various otherforms of molding-machines, all within the scope of my invention asherein set forth and claimed.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

1. In a molding-machine, the combination of a frame comprising a base orsupport and a stripper-plate, vertical guide-posts support ed thereby,coperatingteusion and compression devices for securing said guide-postsin position and for adjusting them laterally, said devices being appliedto half-sections of said posts, leaving the other half-sections un- IOOobstructed, and a vertically-movable patternplate cooperating with saidstripper-plate and having keepers or guides which engage theunobstructed faces of said guide-posts and are adapted to work past thesaid post-adjusting devices; substantially as described.

2. In a molding-machine, the combination of a frame comprising a base orsupport and a stripper-plate, vertical guide-posts, means for adjustablysecuring said posts to the frame, said means comprising cooperatingpushing and pulling screws Working through the base or support andengageable with one side of said guide-posts, and a vertically-movablepattern-plate coperating with the stripper-plate and having guides orkeepers working on the unobstructed faces of said guideposts,substantially as described.

3. In a molding-machine, the combination with a frame including astripper-plate and a base-plate having the laterally-bulged yokes l" andclearance-passages 1, of the angular guide-posts 10 connected at theirupper ends to said stripper-plate, and the pulling-screw 14: and pair ofpushing-screws I5 working through each yoke 1b and adjustably butrigidly securing the ends of said guide-posts, as described, and thevertically-movable pattern-plate having the depending guides or keepers16 engaging with the inner angular faces of said guide-posts and adaptedto work downward through said clearance-passages 1.

4. In a molding-machine, the combination with a plate supporting apattern, of a flask resting on said plate, and a ask-raising devicecomprising an oscillating lever, a longitudinally-adjustable plunger orrod pivoted to said lever and engageable with said iiask,

and a vertically-reciprocating part operating the said lever andadjustable to regulate the' throw of said lever.

5. In a molding-machine, the combination with a frame involving astripper-plate, of a ask normally resting on said stripper-plate, avertically-movable pattern-plate carrying a pattern which works throughsaid stripperplate, and a ilask-raising device comprising anintermediate lever, and relatively long and short plungers connected tothe ends of said lever, the former engaging with said ask and the latterengaged by said pattern-plate, when said pattern-plate is lowered, bothof which plun gers are longitudinally adj ustable, substantially asdescribed.

6. In a molding-machine, the combination with a frame involving astripper-plate, of a ilask normally resting on said stripper-plate, averticallymovable pattern-plate carrying a pattern which works throughsaid stripperplate, and means for raising said flask when saidpattern-plate is lowered, involving the levers 24, the heads 28 pivotedto the end of said levers, the relatively long and short plungers 25 and26, respectively,having screwthreaded engagement with said heads 28 andsuitably guided at their upper ends and engageable, respectively withsaid liask and with said pattern-plate, and the lock-nuts 27 on the saidplungers, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

JAMES P. APPLEBY.

Witnesses:

ELIZABETH H. KELIHER, F. D. MERCHANT.

